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Advancements in AGNES: Swiss GNSS Network Utilization for Various Applications

AGNES, the Swiss GNSS network, serves in positioning services, reference frame control, land surveying, and more. It offers the Swiss coordinate system actively and enables GPS evaluations. Important for GPS meteorology, AGNES hosts various projects enhancing network capabilities and data availability. Through partnerships and continuous improvements, AGNES aims to expand its network and enhance accuracy for diverse uses.

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Advancements in AGNES: Swiss GNSS Network Utilization for Various Applications

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  1. GANUWE Kick-Off:Beitrag von swisstopo E. Brockmann 18.1.2007

  2. Multi-Purpose Netzwerk AGNES Automatisches GNSS Netwerk Schweiz (AGNES) wird verwendet für: • Positionierungsdienste • Referenzrahmenkontrolle • Landesvermessung • Wissenschaft • GPS-Meteorologie • Tektonik AGNES stellt das schweizerische Koordinatensystem aktiv zur Verfügung

  3. GPS-Auswertungen (1) GPSNet (Trimble; Real-time)

  4. AGNES: Stationsbilder

  5. GPS-Auswertungen (2) Bernese 5.0; Postprocessing

  6. Monitoring web-Seiten http://www.swisstopo.ch/en/basics/geo/permnetworks/pnac/timeseries/index

  7. DOY 2006 Verfügbare Plots Koordinaten: Multi-Year Koordinaten: letzter Monat Koordinaten: letzte 3 Tage ZTD: letzte Woche

  8. swisstopo Beitrag GPS-Meteorologie • 2001 – 2003: EU Projekt COST-716 • 2003 – 2006: EU Projekt TOUGH • 2006 – : EUMETNET Projekt E-GVAP • 2006 – : CH-Projekt GANUWE • Partner: Meteo Schweiz

  9. Status 16. Januar, 2007 • Ca. 550 Stationen verfügbar: ZTD http://www.knmi.nl/samenw/egvap/validation/ztd_iwv.html

  10. swisstopo Beitrag E-GVAP (Jan. 2007) • 80 Stationen NRT mit Bernese 5.0 (LPT) • 39 Stationen RRT with GPSNet 2.4(LPTR) • Letztes Jahr: 99.4% Verfügbarkeit NRT: Near real-time RRT: Real real-time

  11. Datenlieferungen • an MeteoSwiss / E-GVAP (EUMETNET) • Stündlich: ZTD Paramter von ca. 80 / 39 Stationen (NRT / RRT) • an GANUWE: • Wöchentlich: ZTD Parameter von ca. 89 Stationen + Double-Differenz Residuen

  12. Verbesserungen der Auswertungen 2006 • Grösseres Netz (120º x 45º statt 30º x 15º) • Gewichtung der ZTD Parameter (bei schwacher Satellitengeometrie) • Mehrdeutigkeitslösung • Qualitätscheck (Vergleich NRT mit PP) • Antennenmodell (relativ -> absolut) [3-8 mm stationsabhängiger ZTD bias]

  13. Ausblick • AGNES -> Automatisches GPS GNSS Netz Schweiz • Umstellungen Mitte bis Ende 2007; Kooperation mit swissat (GLONASS Referenznetz) • GNSS-Meteo in Zimmerwald (Zusammenarbeit mit dem AIUB / IAP)

  14. :60 :00 LPT NRT +0 LPT NRT +60 1 hour Time Processing NRT • Bernese 5.0 • Input: IGU Ultra-Rapid Orbits, IGS relative antenna calibration values • 8-hour sliding window, Ambiguity resolution, coordinate adaption with 1-month filter in ITRF00

  15. Netzwerkvergrösserung • + REYK, STJO, PDEL, MAS1, TRAB, ARTU, KIR0

  16. Improvements: 2. Weighting scheme 2 weeks investigation period: Internal comparisons

  17. Improvements: 2. Weighting scheme (2) 2 weeks investigation period: External comparisons

  18. 4. Quality Checks – Comparison with PP

  19. 4. Quality Checks – Comparison with PP (2)

  20. 4. Quality Checks – Comparison with PP (3) Abs. antenna model

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